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Reproduction and embryonic development of the blue stingray, Dasyatis chrysonota, in southern African waters

Published online by Cambridge University Press:  17 November 2008

David A. Ebert  and
Paul D. Cowley
David A. Ebert*
Affiliation:
Pacific Shark Research Center, Moss Landing Marine Laboratories, 8272 Moss Landing Road, Moss Landing, CA, 95039, USA
Paul D. Cowley
Affiliation:
South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown 6140, South Africa
*
Correspondence should be addressed to: D.A. Ebert, Pacific Shark Research Center, Moss Landing Marine Laboratories, 8272 Moss Landing Road, Moss Landing, CA, 95039, USA email: [email protected]
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Abstract

Dasyatis chrysonota is perhaps the most common of the 14 whiptail stingray (Chondrichthyes: Dasyatidae) species known to frequent the temperate coastal waters of southern Africa and like other stingrays they possess life history characteristics that make them vulnerable to over-exploitation. First and 50% maturity (Dw50) were determined for 153 males and 204 females from the Eastern Cape Province of South Africa. Disc width (Dw) for first and Dw50 maturity was estimated at 392 mm and 395 mm Dw, respectively for males and at 500 mm and 505 mm Dw, respectively for females. The reproductive cycle of males, based on gonadosomatic (GSI) and hepatosomoatic (HSI) indices indicates that they are most active during the spring. Females appear to have an annual reproductive cycle with a maximum HSI occurring during the summer and autumn, but it declines steadily through the birthing season reaching a low in the late spring. Fecundity, following a nine month gestation period, averages 2.8 with a range of 1–7. Embryos at six different development stages are described. Dasyatis chrysonota, like other dasyatids, exhibit life history characteristics that make them vulnerable to overexploitation, therefore a precautionary management strategy is advised for this species.

Keywords

Dasyatidaeelasmobranchfecunditymaturityseasonality
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 89 , Issue 4 , June 2009 , pp. 809 - 815
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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References

REFERENCES

Babel, J.S. (1967) Reproduction, life history, and ecology of the round stingray, Urolophus halleri Cooper. California Fish and Game Fish Bulletin 137, 1–104.Google Scholar
Capapé, C. (1993) New data on the reproductive biology of the thorny stingray, Dasyatis centroura (Pisces: Dasyatidae) from off the Tunisian coast. Environmental Biology of Fishes 38, 73–80.CrossRefGoogle Scholar
Chapman, D.D., Corcoran, M.J., Harnvey, G.M., Malan, S. and Shivji, M.S. (2003) Mating behavior of southern stingrays, Dasyatis americana (Dasyatidae). Environmental Biology of Fishes 68, 241–245.CrossRefGoogle Scholar
Compagno, L.J.V. (1999) An overview of chondrichthyan systematics and biodiversity in southern Africa. Transactions of the Royal Society of South Africa 54, 75–120.CrossRefGoogle Scholar
Compagno, L.J.V., Ebert, D.A. and Smale, M.J. (1989) Guide to the sharks and rays of southern Africa. Cape Town: Struik Publishers, p. 160.Google Scholar
Cowley, P.D. (1990) The taxonomy and life history of the blue stingray Dasyatis marmorata capensis (Batoidea: Dasyatidae) from southern Africa. Masters thesis. Rhodes University, Grahamstown, South Africa.Google Scholar
Cowley, P.D. (1997) Age and growth of the blue stingray Dasyatis chrysonota chrysonota from the South-Eastern Cape coast of South Africa. South African Journal Marine Science 18, 31–38.CrossRefGoogle Scholar
Cowley, P.D. and Compagno, L.J.V. (1993) A taxonomic re-evaluation of the blue stingray from southern Africa (Myliobatiformes: Dasyatidae). South African Journal Marine Science 13, 135–149.CrossRefGoogle Scholar
Cox, D.L. and Koob, T.J. (1993) Predation on elasmobranch eggs. Environmental Biology of Fishes 38, 117–125.CrossRefGoogle Scholar
Davis, C.D., Cailliet, G.M. and Ebert, D.A. (2007) Age and growth of the roughtail skate, Bathyraja trachura (Gilbert, 1892), from the eastern North Pacific. Environmental Biology of Fishes 80, 325–336.CrossRefGoogle Scholar
Ebert, D.A. (2003) Sharks, rays, and chimaeras of California. Berkeley, CA, University of California Press, p. 284.Google Scholar
Ebert, D.A. and Cowley, P.D. (2003) Diet, feeding behaviour and habitat utilization of the blue stingray Dasyatis chrysonota (Smith, 1828) in South African waters. Marine and Freshwater Research 54, 957–965.CrossRefGoogle Scholar
Ebert, D.A. and Ebert, T.B. (2005) Reproduction, diet and habitat use of leopard sharks, Triakis semifasciata (Girard) in Humboldt Bay, California, USA. Marine and Freshwater Research 56, 1089–1098.CrossRefGoogle Scholar
Ebert, D.A., Compagno, L.J.V. and Cowley, P.D. (2008) Aspects on the reproductive biology of skates (Chondrichthyes: Rajiformes: Rajoidei) from southern African waters. ICES Journal of Marine Science 65, 81–102.CrossRefGoogle Scholar
Kajiura, S.M., Sebastián, A.P. and Tricas, T.C. (2000) Dermal bite wounds as indicators of reproductive seasonality and behavior in the Atlantic stingray, Dasyatis sabina. Environmental Biology of Fishes 58, 23–31.CrossRefGoogle Scholar
Lucifora, L.O. and Garcia, V.B. (2004) Gastropod predation on egg cases of skates (Chondrichthyes, Rajidae) in the southwestern Atlantic: quantification and life history implications. Marine Biology 145, 917–922.CrossRefGoogle Scholar
Martin, L.K. and Cailliet, G.M. (1988) Aspects of the reproduction of the bat ray, Myliobatis californica Gill, in central California. Copeia 1988, 754–762.CrossRefGoogle Scholar
McCourt, R.M. and Kerstitch, A.N. (1980) Mating behavior and sexual dimorphism in the stingray Urolophus concentricus from the Gulf of California. Copeia 1980, 900–901.CrossRefGoogle Scholar
Mollet, H.F., Ezcurra, J.M. and O'Sullivan, J.B. (2002) Captive biology of the pelagic stingray, Dasyatis violacea (Bonaparte, 1832). Marine and Freshwater Research 53, 531–541.CrossRefGoogle Scholar
Musick, J.A. (1999) Ecology and conservation of long-lived marine animals. In Musick, J.A. (ed.) American Fisheries Society Symposium 23: life in the slow lane: ecology and conservation of long-live marine animals. Bethesda, MD: American Fisheries Society, pp. 1–10.Google Scholar
Musick, J.A. and Ellis, J.K. (2005) Reproductive evolution of chondrichthyans. In Hamlett, W.C. (ed.) Reproductive biology and phylogeny of Chondrichthyes: sharks, batoids, and chimaeras. Enfield, NH: Science Publishers, pp. 45–79.Google Scholar
Olsen, A.M. (1954) The biology, migration, and growth rate of the school shark, Galeorhinus australis (Macleay) (Carcharhinidae) in south-eastern Australian waters. Australian Journal of Marine and Freshwater Research 5, 353–410.CrossRefGoogle Scholar
Pratt, H.L. (1979) Reproduction in the blue shark, Prionace glauca. Fisheries Bulletin 77, 445–470.Google Scholar
Ricker, W.E. (1973) Linear regressions in fishery research. Journal of the Fisheries Research Board of Canada 30, 409–434.CrossRefGoogle Scholar
Ripley, W.E. (1946) The biology of the soupfin Galeorhinus zyopterus and biochemical studies of the liver. California Fish and Game, Fish Bulletin 64, 1–93.Google Scholar
Roa, R., Ernst, B. and Tapia, F. (1999) Estimation of size at sexual maturity: an evaluation of analytical and resampling procedures. Fishery Bulletin 97, 570–580.Google Scholar
Rossouw, G.J. (1983) The biology of the lesser sandshark, Rhinobatos annulatus in Algoa Bay with notes on other elasmobranches. PhD thesis. University of Port Elizabeth, Port Elizabeth, South Africa.Google Scholar
Rossouw, G.J. (1987) Function of the liver and hepatic lipids of the lesser sand shark, Rhinobatos annulatus (Müller and Henle). Comparative Biochemistry and Physiology 86B, 785–790.Google Scholar
Smith, A. (1828) Descriptions of new, or imperfectly known objects of the animal kingdom, found in the south of Africa. South African Commercial Advertiser 3, 2.Google Scholar
Smith, W.D., Cailliet, G.M. and Melendez, E.M. (2007) Maturity and growth characteristics of a commercially exploited stingray, Dasyatis dipterura. Marine and Freshwater Research 58, 54–66.CrossRefGoogle Scholar
Snelson, F.F., Williams, S.E. and Schmid, T.H. (1988) Reproduction and ecology of the Atlantic stingray, Dasyatis sabina, in Florida coastal lagoons. Copeia 1988, 729–739.CrossRefGoogle Scholar
Snelson, F.F., Williams, S.E. and Schmid, T.H. (1989) Biology of the bluntnose stingray, Dasyatis sayi, in Florida coastal lagoons. Bulletin of Marine Science 45, 15–25.Google Scholar
Struhsaker, P. (1969) Observations on the biology and distribution of the thorny stingray, Dasyatis centroura (Pisces: Dasyatidae). Bulletin of Marine Science 19, 456–481.Google Scholar
Thorson, T.B., Langhammer, J.K. and Oetinger, M.I. (1983) Reproduction and development of the South American freshwater stingrays, Potamotrygon circularis and P. motoro. Environmental Biology of Fishes 9, 3–24.CrossRefGoogle Scholar
Tricas, T.C. (1980) Courtship and mating related behaviors in Myliobatid rays. Copeia 1980, 553–556.CrossRefGoogle Scholar
Van der Elst, R.P. (1981) A guide to the common sea fishes of southern Africa. Cape Town: Struik Publishers, pp. 367.Google Scholar
Villavicencio-Garayzar, C.J., Hoffmann, C.D. and Melendez, E.M. (1994) Tamano y reproduccion de la raya Dasyatis longus (Pisces: Dasyatidae), en Bahia Almejas, Baja California Sur, Mexico. Revista de Biologia Tropical 42, 375–377.Google Scholar
Wallace, J.H. (1967) The batoid fishes of the east coast of southern Africa. Part II: Manta, eagle, duckbill, cownose, butterfly and stingrays. South African Association of Marine Biological Research, Oceanographic Research Institute, Investigative Report 16, 56 pp.Google Scholar
White, W.T. and Dharmadi, . (2007) Species and size composition and reproductive biology of rays (Chondrichthyes, Batoidea) caught in target and non-target fisheries in eastern Indonesia. Journal of Fish Biology 70, 1809–1837.CrossRefGoogle Scholar
Zar, J.H. (1999) Biostatistical analysis, 3rd edition.New Jersey, USA: Prentice-Hall.Google Scholar